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Describe in details how we can determine the acid dissociation constant Ka for a week acid HA , include the description of the titration method and how determine the Ka from the reaction curve , then sketch the titration curve with details necessary for finding Ka.
Use the graph of solubility of O2 in water vs. temperature to calculate the value of Henry's law constant KH
Methanol undergoes combustion in oxygen to make Carbon Dioxide Gas & Liquid Water. Find Standard Enthalpy of Reaction?
An Ideal gas originally at a temperature T1 and pressure P1 is compressed reversibly against a piston to a volume equal to one-half its original volume, Draw a diagram of the process in the P-V plane.
If the heat of vaporization for Br2 is 29.6 kJ/mol and ΔS° for the vaporization is 88.9 J/mol⋅K, what is the boiling point for bromine?
a sample contains 67.0% of the R isomer and 33.0% of its enantiomer, what is the observed specific rotation of the mixture?
a solid,is thought to be either zinc or lead(2)nitrate.how are we going to determine the identity of the solid?
Gold sells for $1120/oz. One ounce is equal to 28.35g. The molar mass of gold is 196.97g/mol. 1 moldovian franc contains 0.567g of gold. If 1 franc = $1.42, how many atoms of gold are presents in 0.010 moldovian francs?
What is the percent recovery of caffeine from tea leaves in the procedure here? Compare the amount of caffeine isolated to the mass of the tea leaves.
The ester ethyl p-nitrobenzoate is more reactive towards nucleophilic acyl substitution than ethyl p-methyoxybenzoate.
the acidity of substituted benzenes and why it is so. Examples of molecules are p-nitrotoluene compared to m-nitrotoluene.
good primary standard for aqueous acid-base titrations. Calculate the mass, in grams, of KHP needed to produce 250. mL of a 1.50 M solution of KHP.
A reaction in water causes the water in beaker to cool from 25 degrees Celsius to 21 degrees Celsius. The volume of water 150ml (d=1.0g/ml). What is the heat absorbed by the reaction?
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